Relational Algebra Quizzes, Questions & Answers

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Top Trending Relational Algebra Quizzes

This Relational Algebra Basics Quiz evaluates your understanding of fundamental operations on relational databases. You'll test your knowledge of selection, projection, union, intersection, and join operations\u2014core concepts...

Questions: 15 | Attempts: 13 | Last updated: May 1, 2026

Sample Question 1
What is a relation in relational algebra?

A two-dimensional table with rows and columns

A connection between two databases

A type of programming language

A rule for sorting data

Sample Question 2
Which operation selects specific rows from a relation based on a condition?

Projection

Selection

Union

Join

Relational Algebra Expression Evaluation Quiz

Test your understanding of relational algebra operations and expression evaluation. This Relational Algebra Expression Evaluation Quiz covers core concepts including selection, projection, join, union, and set operations....

Questions: 15 | Attempts: 11 | Last updated: May 1, 2026

Sample Question 1
What does the selection operator (σ) in relational algebra do?

Filters rows based on a condition

Selects specific columns from a table

Combines two tables horizontally

Removes duplicate rows

Sample Question 2
Which relational algebra operator is used to extract specific columns from a relation?

Selection (σ)

Projection (π)

Join (⨝)

Union (∪)

Recent Relational Algebra Quizzes

Relational Algebra Join Operation Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
Which join operation returns all rows from the left relation and matching rows from the right relation?

Inner join

Left outer join

Right outer join

Full outer join

Relational Algebra Projection Operation Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What does the projection operation (π) in relational algebra do?

Selects specific columns from a relation

Filters rows based on a condition

Combines two relations together

Removes duplicate rows from a table

Relational Algebra Selection Operation Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What does the selection operation (σ) in relational algebra do?

Filters rows based on a specified condition

Combines two relations by matching columns

Removes duplicate rows from a relation

Reorders rows in ascending order